@article{MAN_1912__72_158566,
     author = {A. Loewy},
     title = {Zur {Theorie} der linearen homogenen {Differentialausdr\"ucke}},
     journal = {Mathematische Annalen},
     pages = {203--210},
     publisher = {mathdoc},
     volume = {72},
     year = {1912},
     zbl = {43.0190.01},
     url = {http://geodesic.mathdoc.fr/item/MAN_1912__72_158566/}
}